32GB Total. 4pcs 8gb DDR4, 2400MHz, ECC, CL17, 2R, X4, 1.2V, Non Registered, DIMM, 288-pin BRAND Computer Memory Solutions LIFETIME WARRANTY BY Computer Memory Solutions COMPATIBLE WITH Lenovo ThinkSystem ST50. Max Memory 64GB Sockets 4
Important: Faster memory will clock down to run at optimal speed depending on processor model installed. Models come with non-ECC or ECC, please verify your systems specifications.